Fantastic little book with meticulously drawn and assembled examples of the best crop circles to 2005 (would have liked a new edition to bring us up to date). Still amazes me that these incredible figures appear in the landscape every year with the most phenomenal accuracy and attention to detail, with no mistakes, no evidence of trampling, nobody admitting they did them (every group has a person willing to tell), but I don't go with the aliens theory. I think they are phenomenon of zero-point energy, the 'hum' of the universe, being expressed in complex mathematics to teach us something but we are too dumb or cynical to take note. Read this little book as a taster, and then buy one of the bigger one to get the full story.
Sums up the basic essentials, presenting and explaining them succinctly. Not only a very good starting point but also a very useful reference, with plenty of pictures/examples. Priced just right, and thoroughly recommended.